Dry weather is easy to breed dandruff. Why?

Dandruff, medically known as pityriasis scalp, is a skin disease caused by Malassezia (a fungus). The proliferation of Malassezia on the scalp causes excessive proliferation of the stratum corneum of the scalp, which makes the stratum corneum cells fall off abnormally in the form of white or gray scales, which is dandruff.

Dandruff is caused by common skin spots, that is, the continuous peeling of the surface cuticle, which is also the result of basic metabolism. Dandruff is divided into physiological dandruff and physiological dandruff. Too much dandruff and blocked skin pores will lead to the decline of body hair, which is very easy to breed bacteria and irritate the skin and cause scalp itching.

Physiological dandruff refers to scalp inflammation caused by bacterial infection, bacterial infection or other physical and chemical properties damage. Generally, adults are generally dry dander, and there are chaff-like, gray-white small phosphine chips scattered between body hairs. The other is oil-soluble dandruff. Scalp and hair feel greasy and sticky, with scabs of different thicknesses attached to them, which is especially common in lactating children.

There is a microbial strain with PITYRO-SPORUMOVALE, which is a kind of yeast-like bacteria. When everything is normal, it will coexist peacefully with people, but some people will suddenly lose their resistance to this microbial strain. Dandruff Bacillus can make sebaceous glands metabolize a lot, causing dandruff.

Scalp somatic cells also have a certain metabolic process like skin. After the dermal cells proliferate, they gradually improve and release outward, and finally become the dead cuticle, and the cuticle falls off. If something goes wrong in this link, the whole process of improving scalp somatic cells will be incomplete. In other words, it will flake off one by one. For example, the elderly, patients lacking nutrition, receiving chemotherapy or psoriasis are all reasons for the increase of dandruff.

To prevent eating fried, greasy, spicy, ethanol and caffeine and other ingredients, because it will stimulate the production of hair oil and scalp, so you should quit. Avoid eating too sweet food. Because hair is alkaline and dessert is acid-base, it will interfere with the acidity and alkalinity of the body and accelerate the scalp. Don't pour shampoo on your head at once. Because shampoo without foam will cause irritation to the scalp, it will produce scalp or aggravate the occurrence of scalp, so it should be poured on your hands to rub out foam and then applied to your hair.